Bacteria Cell Sturcture

Question 1

What is the size of bacteria?

Answer 1

E. coli (1 by 3) micrometres

Question 2

What are the most common shapes of bacteria?

Answer 2

cocci and bacillus (rods)

Question 3

What is vibrio?

Answer 3

curved rods

Question 4

What is spirilla?

Answer 4

twisted rod

Question 5

What is spirochete?

Answer 5

flexible twisted rod

Question 6

What is the shape and gram of Troponema pallidium?

Answer 6

gram -ive spirochete

Question 7

What do most bacteria divide by?

Answer 7

binary fission (split into 2)

Question 8

When cells remain stuck during division how do they form?

Answer 8

pairs, chains or clusters

Question 9

What is Cyanobacteria?

Answer 9

gram -ive photosynthetic bacteria, live in H20

Question 10

What is special about Cyanobacteria?

Answer 10

multicellular filamentous and have specialized cells as part of filaments

Question 11

What is heterocysts?

Answer 11

used to fix N2 in Cyanobacteria

Question 12

What is the genus Streptomyces?

Answer 12

gram +ive, found in soil as branching filaments

Question 13

What is monomorphic?

Answer 13

one shape, most bacteria, eg. E. coli

Question 14

What is pleomorphic?

Answer 14

variety of shapes

Question 15

Do all bacteria have a plasma membrane?

Answer 15

Yes

Question 16

Do all bacteria have a cell wall?

Answer 16

most do

Question 17

What is gram -ive bacteria?

Answer 17

have an outer membrane as part of cell wall

Question 18

What is periplasmic space

Answer 18

the space btwn the outer membrance and PM

Question 19

What is periplasm?

Answer 19

the fluid of the periplasmic space

Question 20

Do gram +ive have an outer membrane?

Answer 20

No

Question 21

Do bacteria have a capsule/slimy layer on their outer surface?

Answer 21

many do

Question 22

do bacteria have flagella and other appendages

Answer 22

many do

Question 23

do bacteria have membrane bound organelles?

Answer 23

most do NOT